(function ($) {
  "use strict";
  // A nice closure for our definitions

  function jQueryCloneWithSelectAndTextAreaValues(elmToClone, withDataAndEvents, deepWithDataAndEvents) {
    // Replacement jQuery clone that also clones the values in selects and textareas as jQuery doesn't for performance reasons - https://stackoverflow.com/questions/742810/clone-isnt-cloning-select-values
    // Based on https://github.com/spencertipping/jquery.fix.clone
    var $elmToClone = $(elmToClone),
      $result           = $elmToClone.clone(withDataAndEvents, deepWithDataAndEvents),
      $myTextareas     = $elmToClone.find('textarea').add($elmToClone.filter('textarea')),
      $resultTextareas = $result.find('textarea').add($result.filter('textarea')),
      $mySelects       = $elmToClone.find('select').add($elmToClone.filter('select')),
      $resultSelects   = $result.find('select').add($result.filter('select')),
      i, l, j, m;

    for (i = 0, l = $myTextareas.length; i < l; ++i) {
      $($resultTextareas[i]).val($($myTextareas[i]).val());
    }
    for (i = 0, l = $mySelects.length;   i < l; ++i) {
      for (j = 0, m = $mySelects[i].options.length; j < m; ++j) {
        if ($mySelects[i].options[j].selected === true) {
          $resultSelects[i].options[j].selected = true;
        }
      }
    }
    return $result;
  }

  function getjQueryObject(string) {
    // Make string a vaild jQuery thing
    var jqObj = $("");
    try {
      jqObj = jQueryCloneWithSelectAndTextAreaValues(string);
    } catch (e) {
      jqObj = $("<span />")
        .html(string);
    }
    return jqObj;
  }

  function printFrame(frameWindow, content, options) {
    // Print the selected window/iframe
    var def = $.Deferred();
    try {
      frameWindow = frameWindow.contentWindow || frameWindow.contentDocument || frameWindow;
      var wdoc = frameWindow.document || frameWindow.contentDocument || frameWindow;
      if(options.doctype) {
        wdoc.write(options.doctype);
      }
      wdoc.write(content);
      wdoc.close();
      var printed = false,
        callPrint = function () {
          if(printed) {
            return;
          }
          // Fix for IE : Allow it to render the iframe
          frameWindow.focus();
          try {
            // Fix for IE11 - printng the whole page instead of the iframe content
            if (!frameWindow.document.execCommand('print', false, null)) {
              // document.execCommand returns false if it failed -http://stackoverflow.com/a/21336448/937891
              frameWindow.print();
            }
            // focus body as it is losing focus in iPad and content not getting printed
            $('body').focus();
          } catch (e) {
            frameWindow.print();
          }
          frameWindow.close();
          printed = true;
          def.resolve();
        };
      // Print once the frame window loads - seems to work for the new-window option but unreliable for the iframe
      $(frameWindow).on("load", callPrint);
      // Fallback to printing directly if the frame doesn't fire the load event for whatever reason
      setTimeout(callPrint, options.timeout);
    } catch (err) {
      def.reject(err);
    }
    return def;
  }

  function printContentInIFrame(content, options) {
    var $iframe = $(options.iframe + "");
    var iframeCount = $iframe.length;
    if (iframeCount === 0) {
      // Create a new iFrame if none is given
      $iframe = $('<iframe height="0" width="0" border="0" wmode="Opaque"/>')
        .prependTo('body')
        .css({
          "position": "absolute",
          "top": -999,
          "left": -999
        });
    }
    var frameWindow = $iframe.get(0);
    return printFrame(frameWindow, content, options)
      .done(function () {
        // Success
        setTimeout(function () {
          // Wait for IE
          if (iframeCount === 0) {
            // Destroy the iframe if created here
            $iframe.remove();
          }
        }, 1000);
      })
      .fail(function (err) {
        // Use the pop-up method if iframe fails for some reason
        console.error("Failed to print from iframe", err);
        printContentInNewWindow(content, options);
      })
      .always(function () {
        try {
          options.deferred.resolve();
        } catch (err) {
          console.warn('Error notifying deferred', err);
        }
      });
  }

  function printContentInNewWindow(content, options) {
    // Open a new window and print selected content
    var frameWindow = window.open();
    return printFrame(frameWindow, content, options)
      .always(function () {
        try {
          options.deferred.resolve();
        } catch (err) {
          console.warn('Error notifying deferred', err);
        }
      });
  }

  function isNode(o) {
    /* http://stackoverflow.com/a/384380/937891 */
    return !!(typeof Node === "object" ? o instanceof Node : o && typeof o === "object" && typeof o.nodeType === "number" && typeof o.nodeName === "string");
  }
  $.print = $.fn.print = function () {
    // Print a given set of elements
    var options, $this, self = this;
    // console.log("Printing", this, arguments);
    if (self instanceof $) {
      // Get the node if it is a jQuery object
      self = self.get(0);
    }
    if (isNode(self)) {
      // If `this` is a HTML element, i.e. for
      // $(selector).print()
      $this = $(self);
      if (arguments.length > 0) {
        options = arguments[0];
      }
    } else {
      if (arguments.length > 0) {
        // $.print(selector,options)
        $this = $(arguments[0]);
        if (isNode($this[0])) {
          if (arguments.length > 1) {
            options = arguments[1];
          }
        } else {
          // $.print(options)
          options = arguments[0];
          $this = $("html");
        }
      } else {
        // $.print()
        $this = $("html");
      }
    }
    // Default options
    var defaults = {
      globalStyles: true,
      mediaPrint: false,
      stylesheet: null,
      noPrintSelector: ".no-print",
      iframe: true,
      append: null,
      prepend: null,
      manuallyCopyFormValues: true,
      deferred: $.Deferred(),
      timeout: 750,
      title: null,
      doctype: '<!doctype html>'
    };
    // Merge with user-options
    options = $.extend({}, defaults, (options || {}));
    var $styles = $("");
    if (options.globalStyles) {
      // Apply the stlyes from the current sheet to the printed page
      $styles = $("style, link, meta, base, title");
    } else if (options.mediaPrint) {
      // Apply the media-print stylesheet
      $styles = $("link[media=print]");
    }
    if (options.stylesheet) {
      // Add a custom stylesheet if given
      $styles = $.merge($styles, $('<link rel="stylesheet" href="' + options.stylesheet + '">'));
    }
    // Create a copy of the element to print
    var copy = jQueryCloneWithSelectAndTextAreaValues($this);
    // Wrap it in a span to get the HTML markup string
    copy = $("<span/>")
      .append(copy);
    // Remove unwanted elements
    copy.find(options.noPrintSelector)
      .remove();
    // Add in the styles
    copy.append(jQueryCloneWithSelectAndTextAreaValues($styles));
    // Update title
    if (options.title) {
      var title = $("title", copy);
      if (title.length === 0) {
        title = $("<title />");
        copy.append(title);
      }
      title.text(options.title);
    }
    // Appedned content
    copy.append(getjQueryObject(options.append));
    // Prepended content
    copy.prepend(getjQueryObject(options.prepend));
    if (options.manuallyCopyFormValues) {
      // Manually copy form values into the HTML for printing user-modified input fields
      // http://stackoverflow.com/a/26707753
      copy.find("input")
        .each(function () {
          var $field = $(this);
          if ($field.is("[type='radio']") || $field.is("[type='checkbox']")) {
            if ($field.prop("checked")) {
              $field.attr("checked", "checked");
            }
          } else {
            $field.attr("value", $field.val());
          }
        });
      copy.find("select").each(function () {
        var $field = $(this);
        $field.find(":selected").attr("selected", "selected");
      });
      copy.find("textarea").each(function () {
        // Fix for https://github.com/DoersGuild/jQuery.print/issues/18#issuecomment-96451589
        var $field = $(this);
        $field.text($field.val());
      });
    }
    // Get the HTML markup string
    var content = copy.html();
    // Notify with generated markup & cloned elements - useful for logging, etc
    try {
      options.deferred.notify('generated_markup', content, copy);
    } catch (err) {
      console.warn('Error notifying deferred', err);
    }
    // Destroy the copy
    copy.remove();
    if (options.iframe) {
      // Use an iframe for printing
      try {
        printContentInIFrame(content, options);
      } catch (e) {
        // Use the pop-up method if iframe fails for some reason
        console.error("Failed to print from iframe", e.stack, e.message);
        printContentInNewWindow(content, options);
      }
    } else {
      // Use a new window for printing
      printContentInNewWindow(content, options);
    }
    return this;
  };
})(jQuery);
